What do you think will the last 2 member of the zero division teach Ichigo?
I hope he learns some new fighting techniques. I mean he always used Getsuga Tensho in shika and in bankai.
Hmmmm... exactly for that reason I think that a new technique is exactly what he wont be learning. Most likely they'll simply train him into perfecting his technique even further.
Seeing as Yhwack can steal Bankai, I'm hoping he learns some beastly Kido (both Bakudo & Hado). And I'm thinking that the fat "monk" guy is the inventor of Kido.